例句
Judging by her past performance, Jane should do very well.
从以往的表现来看，简应该会干得很好。
From past experience she knew that it was no use arguing with him.
根据过去的经验，她知道和他争论是没有用的。
Study some past exam papers to get an idea of the questions.
仔细看看以前的一些考卷，了解一下考题。